Sampson State Park was once a naval training station, then an Air Force base before becoming a state park. Military roads and buildings have been replaced with grasses, wildflowers, shrubs and trees on flat, rolling woodlands surrounding ravines. The focal point of the park is the 123-berth marina for seasonal and transient boaters. There are 245 electric campsites and 64 non-electric sites, picnic areas, playground and playing fields that include tennis, basketball and volleyball courts, a swimming beach, a recreation building, and organized activities including tours, hikes and wildlife watches. Seneca Lake is famous for its trout fishing.